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4. Replacement of power head
Dismantling
1. Note the pump type of the faulty power head and find the corresponding
service nameplate delivered together with the new power head. Fit the
service nameplate on the new power head. See fig. 9.
2. Switch off the power supply to the pump, and make sure that it cannot be
accidentally switched on again during replacement.
3. Close the isolating valves on either side of the pump or empty pipe
system for water.
4. Remove the four screws securing the control box cover. Remove the
cover. See fig. 2.
5. Before disconnecting any leads, carefully note their position.
6. Disconnect all leads from the control box.
7. Unscrew the five screws securing the PCB to the control box bottom and
remove the PCB from the control box. See fig. 4.
8. Remove the two rubber plugs. See fig. 6.
9. Remove the two screws securing the terminal box to the power head.
See fig. 5.
Warning
Please note that the pump may be hot for a while after being
switched off and that hot liquid may escape from the pump
during dismantling.
Warning
Never make any connections in the pump control box unless
the power supply has been switched off for at least 5 minutes.
Make sure that voltage supplies from other external systems
have been switched off as well.
Caution
Always use an antistatic service kit (Grundfos ESD,
protection set prod. no. 96884939) when dismantling and
assembling the terminal box as the electronics are sensitive
to static electricity. Connect the antistatic service kit to the
connection terminal of the protective earth lead (PE terminal).
Summary of Contents for UPE 100 FZ
Page 1: ...GRUNDFOS INSTRUCTIONS UPE Series 2000 FZ Service parts...
Page 2: ......
Page 16: ...Appendix 149 Appendix Fig 1 TM04 6856 1010...
Page 17: ...Appendix 150 Fig 2 Fig 3 TM04 6857 1010 TM04 6858 1010...
Page 18: ...Appendix 151 Fig 4 Fig 5 TM04 6859 1010 TM04 6860 1010...
Page 19: ...Appendix 152 Fig 6 Fig 7 TM04 6861 1010 TM04 6862 1010...
Page 20: ...Appendix 153 Fig 8 Fig 9 TM04 6863 1010 TM04 6864 1010...
Page 21: ...Appendix 154 Fig 10 Fig 11 TM04 6865 1010 TM04 6866 1010...
Page 22: ...Appendix 155 Fig 12 Fig 13 TM04 6867 1010 TM04 6868 1010...
Page 23: ...Appendix 156 Fig 14 Fig 15 TM04 6869 1010 TM04 6870 1010...
Page 24: ...Appendix 157 Fig 16 Fig 17 TM04 6871 1010 TM04 6872 1010...
Page 25: ...Appendix 158 Fig 18 Fig 19 TM04 6873 1010 TM04 6874 1010...
Page 26: ...Appendix 159 Fig 20 Fig 21 TM04 6875 1010 TM04 6876 1010...
